LVL 10 Hissing!!!

[purplemag]

My LX does it thing and stops on an object in the breech. But it hisses for a split second(too long for me!), before resetting to the cocked position. Does this just mean I need the longest spring(using middle now), I think maybe going to the red will reset quicker, but I will have to raise input pressure a bunch right? I think what happens sometimes is the bolt will push a ball farther into the breech but then hiss and reset itself, and then another ball will feed. Has anyone had this. I know this is jumbled, just tying to give my best description of the "problem". Thanks.

[Dayspring]

Start adjusting with the shims. Add them until it leaks, then take one out.

BTW- the red spring IS the middle spring.

[athomas]

Try increasing a carrier size. The carrier may be a bit tight causing the bolt to stick. This would result in additional air having to be vented out the front to decrease the chamber pressure enough to allow the bolt spring to have an enough differential force to return the bolt.